Stuff

Readme.md

@@ -1,5 +1,11 @@
-test
+#GoWgPKG
-Easy to use wireguard abstraction for linux
+
-# Used
+git.keks.cloud/kekskurse/gowgpkg
-* github.com/vishvananda/netlink
+
-* golang.zx2c4.com/wireguard/wgctrl
+Go Package to configure Wireguard on Linux
+
+* Create Devices
+* Configure Device
+* Create Wireguard
+* Configure wireguard
+* Provides Structs with all needed information

peer.go

@@ -0,0 +1,57 @@
+package gowgpkg
+
+import (
+	"fmt"
+	"net"
+	"golang.zx2c4.com/wireguard/wgctrl"
+	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
+)
+
+func PeerAdd(deviceName string, PeerPublicKey string, PeerPresharedKey string, ipList []net.IPNet, endpoint *net.UDPAddr) (error) {
+	client, err := wgctrl.New()
+	if err != nil {
+		return fmt.Errorf("Cant create wgctrl: %w", err)
+	}
+
+	pubKey, err := wgtypes.ParseKey(PeerPublicKey)
+	if err != nil {
+		return fmt.Errorf("Cant parse public key: %e", err)
+	}
+
+	var preKey *wgtypes.Key
+	if PeerPresharedKey != "" {
+		presharedKey, err := wgtypes.ParseKey(PeerPresharedKey)
+		if err != nil {
+			return fmt.Errorf("Cant parse preshared key: %e", err)
+		}
+		preKey = &presharedKey
+	}
+
+	peerConfig := wgtypes.PeerConfig{
+		PublicKey:                   pubKey,
+		Remove:                      false,
+		UpdateOnly:                  false,
+		PresharedKey:                preKey,
+		Endpoint:                    endpoint,
+		PersistentKeepaliveInterval: nil,
+		ReplaceAllowedIPs:           true,
+		AllowedIPs:                  ipList,
+	}
+	var peerConfigs []wgtypes.PeerConfig
+	peerConfigs = append(peerConfigs, peerConfig)
+
+	config := wgtypes.Config{
+		PrivateKey:   nil,
+		ListenPort:   nil,
+		FirewallMark: nil,
+		ReplacePeers: false,
+		Peers:        peerConfigs,
+	}
+
+	err = client.ConfigureDevice(deviceName, config)
+	if err != nil {
+		return fmt.Errorf("Cant add peer: %e", err)
+	}
+
+	return nil
+}